[JavaScript] possible enhancement: distinguish uses of square brackets

[jcberquist]

With the addition of the after-identifier context, it looks to me like it is possible to distinguish the use of square brackets in a property accessor (or array index) and square brackets used to denote a literal array. Does that seem right? If so, is that something you would be interested in adding?

[wbond]

Yes, that seems like a reasonable addition. I'll likely be adding such support to C/C++ and PHP soon also since those are now in better shape for more context-specific enhancements.

[jcberquist]

I added a commit that implements this on a basic level: https://github.com/jcberquist/Packages/commit/3240bcb5ea4162e5acc2a4a8c0efbc93adde9088

I didn't create a pull request because I wasn't sure of the scopes you wanted to use, or if this was a satisfactory way to go about it (especially since you plan to do the same in C/C++ and PHP).

[keith-hall]

The scoping for this is being discussed here: #790

[Thom1729]

Counterexample to jcberquist@3240bcb:

1 /**/ [a]

The [a] is incorrectly scoped meta.array-literal.js. The cause is the same as #885.